I have a 2014 Sorento that won't start. The brake pedal is very hard so I'm suspecting a bad brake booster, one way vaccum valve to booster or a neutral safety switch. I've tried pushing the brake pedal very hard as well as puching the stsrt button twice and holding for 10 second to with no success! No problems with fob or car battery. Can anyone tell me how to get the car to stared? Like to get it to a garage without towing. Thanks